Sambasiviah, Itta, et al. <br/><br/>
Textbook animal ecology 

 -  S Chand & Co. Pvt. Ltd., New Delhi  1976 
 - 474 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology of animals; Zoology
<br/><br/><label>Dewey Class. No.: </label>591.5  SAM-T